This product allows for the engine idle to be set at 3 predetermined points (between 750 rpm and 1,800 rpm) to facilitate faster engine warm-ups, electrical system charging or even having the A/C or heater working at its optimal capacity. There is a "Valet" setting as well, which governs the engine so that it reaches a maximum of 2,000 rpm, top speed of 55 mph.
Vehicle must have existing cruise control option on turn signal lever to operate high idle function.
_ Includes dash panel insert and harness
03-04 Duramax Highidle Valet Switch
*Note: Legal in California only for racing vehicles which may never be used on the highway.